I found a beef jerkey marinade recipe a long time ago that I use to make all the time. Everyone went crazy over it and I now can not find it. It is possible that it came from this site. Here are the ingredients as I remember them, I think. I might have doubled the recipe here. Any help?
worcstirshire
2 bottles low sodium soy sauce
2 bottles teriyaki
brown sugar
liquid smoke
cayenne
maybe garlic or onion powder

I made a bunch this past fall that turned out really good. I used Dale's Steak Marinade.
I used 50/50 water and Dales( probably a bottle)
1/2 small bottle of liquid smoke
1 tbs of each - granulated garlic, onion pwdr, blk pepper, red pepper flks

Then let marinade for 1.5-2 days.

This was for 5#'s of thin sliced round, I think I used bottom round. Can't remember.